move bcrypt into password

src/bcrypt.js

@@ -1,34 +0,0 @@
-
-'use strict';
-
-var bcrypt = require('bcryptjs');
-var async = require('async');
-
-
-process.on('message', function (msg) {
-	if (msg.type === 'hash') {
-		hashPassword(msg.password, msg.rounds);
-	} else if (msg.type === 'compare') {
-		bcrypt.compare(String(msg.password || ''), String(msg.hash || ''), done);
-	}
-});
-
-function hashPassword(password, rounds) {
-	async.waterfall([
-		function (next) {
-			bcrypt.genSalt(parseInt(rounds, 10), next);
-		},
-		function (salt, next) {
-			bcrypt.hash(password, salt, next);
-		},
-	], done);
-}
-
-function done(err, result) {
-	if (err) {
-		process.send({ err: err.message });
-		return process.disconnect();
-	}
-	process.send({ result: result });
-	process.disconnect();
-}

src/password.js

@@ -1,53 +1,71 @@
 'use strict';
 
 var path = require('path');
+var bcrypt = require('bcryptjs');
+var async = require('async');
 
 var fork = require('./meta/debugFork');
 
-function hash(rounds, password, callback) {
+exports.hash = function (rounds, password, callback) {
 	forkChild({ type: 'hash', rounds: rounds, password: password }, callback);
-}
+};
 
-exports.hash = hash;
+exports.compare = function (password, hash, callback) {
+	async.waterfall([
+		getFakeHash,
+		function (fakeHash, next) {
+			forkChild({ type: 'compare', password: password, hash: hash || fakeHash }, next);
+		},
+	], callback);
+};
 
 var fakeHashCache;
 function getFakeHash(callback) {
 	if (fakeHashCache) {
 		return callback(null, fakeHashCache);
 	}
-
-	hash(12, Math.random().toString(), function (err, hash) {
-		if (err) {
-			return callback(err);
-		}
-
-		fakeHashCache = hash;
-		callback(null, fakeHashCache);
-	});
-}
-
-function compare(password, hash, callback) {
-	getFakeHash(function (err, fakeHash) {
-		if (err) {
-			return callback(err);
-		}
-
-		forkChild({ type: 'compare', password: password, hash: hash || fakeHash }, callback);
-	});
+	async.waterfall([
+		function (next) {
+			exports.hash(12, Math.random().toString(), next);
+		},
+		function (hash, next) {
+			fakeHashCache = hash;
+			next(null, fakeHashCache);
+		},
+	], callback);
 }
 
-exports.compare = compare;
-
 function forkChild(message, callback) {
-	var child = fork(path.join(__dirname, 'bcrypt'));
+	var child = fork(path.join(__dirname, 'password'));
 
 	child.on('message', function (msg) {
-		if (msg.err) {
-			return callback(new Error(msg.err));
-		}
-
-		callback(null, msg.result);
+		callback(msg.err ? new Error(msg.err) : null, msg.result);
 	});
 
 	child.send(message);
 }
+
+// child process
+process.on('message', function (msg) {
+	if (msg.type === 'hash') {
+		hashPassword(msg.password, msg.rounds);
+	} else if (msg.type === 'compare') {
+		bcrypt.compare(String(msg.password || ''), String(msg.hash || ''), done);
+	}
+});
+
+function hashPassword(password, rounds) {
+	async.waterfall([
+		function (next) {
+			bcrypt.genSalt(parseInt(rounds, 10), next);
+		},
+		function (salt, next) {
+			bcrypt.hash(password, salt, next);
+		},
+	], done);
+}
+
+function done(err, result) {
+	process.send(err ? { err: err.message } : { result: result });
+	process.disconnect();
+}